Robert K. Jefferies
2Patents
2h-index
3Co-inventors
30Inventor score
Filing activity: Jan 10, 1975 → Jun 12, 1978
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3957291A | Ball joint assembly with internal passages | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4215643A | Quick release bollard | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.